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Pieter (Jop) WOLTJER

Postdoc Economic History – University of Groningen

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P.J. Woltjer

I am a post-doctoral researcher at the Groningen Growth and Development Centre. As an economic-historian, I am interested in topics ranging from the study of productivity growth in the United States, the diffusion of technology in Europe, to the impact of international trade on development in Africa. The aim of this blog is to provide access to my published articles and working papers, as well as the unpublished datasets, source descriptions and statistical and analytical code underlying my research.

Column: Historical Productivity Growth from Run of the Mill Industries

Evidence from the United States

Historically, productivity growth was not all about high tech sectors and research and development (R&D) expenditure. A new study published The Economic Journal finds that the great majority of productivity originated in other, more ‘run-of-the-mill’ industries. Continue reading “Column: Historical Productivity Growth from Run of the Mill Industries”

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Article: The Composition of Capital and Cross-country Productivity Comparisons

ABSTRACT: The role of physical capital is typically found to be limited in accounting for differences in GDP per worker, but this result may be because capital is customarily assumed to be a homogenous unit. This assumption is misleading,  Continue reading “Article: The Composition of Capital and Cross-country Productivity Comparisons”

Dataset: U.S. Growth Accounts, 1899-1941

A growth decomposition for the U.S. private domestic economy and a 38-industry breakdown. For peak years between 1899 and 1941, this dataset includes detailed estimates for output, employment, hours worked, labor quality, labor services, capital stocks, capital quality, capital services and  Continue reading “Dataset: U.S. Growth Accounts, 1899-1941”

Article: The Sources of Growth in a Technologically Progressive Economy

The United States, 1899-1941

ABSTRACT: We develop new aggregate TFP growth estimates for the United States between 1899 and 1941, and sectoral estimates at the most disaggregated level so far, 38 industries. We include hard-to-measure services, and a refined measure of sectoral labour quality growth.  Continue reading “Article: The Sources of Growth in a Technologically Progressive Economy”

Working Paper: What is new in PWT 9.1?

ABSTRACT: The release of the Penn World Table version 9.1 is the fourth release since the switch to the ‘Next Generation of the Penn World Table’, see Feenstra, Inklaar and Timmer (2015). PWT 9.1 does contain important new and revised data. Continue reading “Working Paper: What is new in PWT 9.1?”

Working Paper: WIOD Socio-Economic Accounts 2016

ABSTRACT: This document describes the sources and methods used for estimation of data on capital stocks and employment variables for the 43 countries included in the WIOD 2016 database, called the Socio-Economic Accounts (SEAs). Continue reading “Working Paper: WIOD Socio-Economic Accounts 2016”

Chapter: Frontier Analysis

Frontier Analysis

ABSTRACT: A great deal of research in economics and business is devoted to the study of efficiency of individuals, organisations or entire economies. This chapter introduces a family of innovative techniques  Continue reading “Chapter: Frontier Analysis”

Column: An Economic Rationale for the West African Scramble?

The Commercial Transition and the Commodity Price Boom of 1835–1885

This paper uses a new trade dataset showing that sub-Saharan Africa experienced a terms of trade boom in the five decades (1835–1885) preceding the European “scramble for Africa” which was comparable to similar export booms in other parts  Continue reading “Column: An Economic Rationale for the West African Scramble?”

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